The car immediately proved to be more competitive than its predecessor, consistently setting the quickest times in preseason testing.
In the race, Massa was taken out at the first turn but Bottas finished sixth – later promoted to fifth – despite a grid penalty and clipping the wall and cutting a tyre ten laps in.
This upturn in performance continued with Bottas finishing third in Austria, Belgium and Russia and second in Great Britain and Germany, Massa taking third in Italy and Brazil and both drivers scoring Williams's first double podium since the 2005 Monaco Grand Prix in Abu Dhabi.
The car was arguably the second fastest on the grid towards the end of the season as shown by the 2-3 in Abu Dhabi by Massa and Bottas respectively.
However, alcohol laws meant Williams could not use their red Martini stripes in Abu Dhabi, instead using a blue livery.